Question: 2 4 . If initially there are 3 0 0 g of a radioactive substance and after 5 yr there are 2 0 0 g

24. If initially there are 300 g of a radioactive substance and after 5 yr there are 200 g remaining, how much time must elapse before only 10 g remain? In Problems 23-27, assume that the rate of decay of a radioactive substance is proportional to the amount of the substance present. The half-life of a radioactive substance is the time it takes for one-half of the substance to disintegrate. (You MUST set up AND solve a Differential Equation
2 4 . If initially there are 3 0 0 g of a

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